21105144

素因数分解:

$2^3\times 3^3\times {\mathrm{199}}^1\times {\mathrm{491}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 59040000

約数和(自身を除く): 37934856

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 199, 216, 398, 491, 597, 796, 982, 1194, 1473, 1592, 1791, 1964, 2388, 2946, 3582, 3928, 4419, 4776, 5373, 5892, 7164, 8838, 10746, 11784, 13257, 14328, 17676, 21492, 26514, 35352, 42984, 53028, 97709, 106056, 195418, 293127, 390836, 586254, 781672, 879381, 1172508, 1758762, 2345016, 2638143, 3517524, 5276286, 7035048, 10552572, 21105144]

約数ペア:

[(1, 21105144), (2, 10552572), (3, 7035048), (4, 5276286), (6, 3517524), (8, 2638143), (9, 2345016), (12, 1758762), (18, 1172508), (24, 879381), (27, 781672), (36, 586254), (54, 390836), (72, 293127), (108, 195418), (199, 106056), (216, 97709), (398, 53028), (491, 42984), (597, 35352), (796, 26514), (982, 21492), (1194, 17676), (1473, 14328), (1592, 13257), (1791, 11784), (1964, 10746), (2388, 8838), (2946, 7164), (3582, 5892), (3928, 5373), (4419, 4776)]